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proxmox-backup-proxy: implement traffic control

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Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
This commit is contained in:
Dietmar Maurer 2021-11-08 12:42:38 +01:00
parent 610150a4b4
commit e511e0e553
1 changed files with 30 additions and 1 deletions
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31
src/bin/proxmox-backup-proxy.rs
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@ -21,6 +21,7 @@ use proxmox::sys::linux::socket::set_tcp_keepalive;
use proxmox::tools::fs::CreateOptions;
use proxmox_lang::try_block;
use proxmox_router::{RpcEnvironment, RpcEnvironmentType, UserInformation};
use proxmox_http::client::{RateLimiter, RateLimitedStream};
use pbs_tools::{task_log, task_warn};
use pbs_datastore::DataStore;
@ -70,6 +71,7 @@ use proxmox_backup::api2::pull::do_sync_job;
use proxmox_backup::api2::tape::backup::do_tape_backup_job;
use proxmox_backup::server::do_verification_job;
use proxmox_backup::server::do_prune_job;
use proxmox_backup::TrafficControlCache;
fn main() -> Result<(), Error> {
proxmox_backup::tools::setup_safe_path_env();
@ -351,7 +353,7 @@ fn make_tls_acceptor() -> Result<SslAcceptor, Error> {
}
type ClientStreamResult =
Result<std::pin::Pin<Box<tokio_openssl::SslStream<tokio::net::TcpStream>>>, Error>;
Result<std::pin::Pin<Box<tokio_openssl::SslStream<RateLimitedStream<tokio::net::TcpStream>>>>, Error>;
const MAX_PENDING_ACCEPTS: usize = 1024;
fn accept_connections(
@ -387,6 +389,9 @@ async fn accept_connection(
sock.set_nodelay(true).unwrap();
let _ = set_tcp_keepalive(sock.as_raw_fd(), PROXMOX_BACKUP_TCP_KEEPALIVE_TIME);
let peer = sock.peer_addr().ok();
let sock = RateLimitedStream::with_limiter_update_cb(sock, move || lookup_rate_limiter(peer));
let ssl = { // limit acceptor_guard scope
// Acceptor can be reloaded using the command socket "reload-certificate" command
let acceptor_guard = acceptor.lock().unwrap();
@ -1075,3 +1080,27 @@ fn gather_disk_stats(disk_manager: Arc<DiskManage>, path: &Path, rrd_prefix: &st
}
}
}
// Rate Limiter lookup
// Test WITH
// proxmox-backup-client restore vm/201/2021-10-22T09:55:56Z drive-scsi0.img img1.img --repository localhost:store2
lazy_static::lazy_static!{
static ref TRAFFIC_CONTROL_CACHE: Arc<Mutex<TrafficControlCache>> =
Arc::new(Mutex::new(TrafficControlCache::new()));
}
fn lookup_rate_limiter(
peer: Option<std::net::SocketAddr>,
) -> (Option<Arc<Mutex<RateLimiter>>>, Option<Arc<Mutex<RateLimiter>>>) {
let mut cache = TRAFFIC_CONTROL_CACHE.lock().unwrap();
let now = proxmox_time::epoch_i64();
cache.reload(now);
let (_rule_name, read_limiter, write_limiter) = cache.lookup_rate_limiter(peer, now);
(read_limiter, write_limiter)
}